Recoil-arrester.



w. J. KING.

' REGOIL AERBSTBR.

APPLOATION E ILED MAY 21, 1910.

Patent-ea sept? 10, 1912".

.w v Il Jnnminr ,my m@ titl THING, OF GMINI) BLA.. C, MCHIGAN.

RECGTtL-ARRESTER.

Specification of Letters latent.

Patented Sept. itt, i912,

.To all whom. t 'may concern:

Be it known that l, 'WILLIAM Yl. Kino, a

vcitizen of the United States, residing at Grand Blanc, county of Genesee, State of llflichigan, have invented a certain new and useful linprovement'in ltecoil-.lirresters and declare the following to be :1 full, clear, and exact description of the same, such as will' enable others skilled in the art to which it pertains to malte and use the same, reference beine,r had to the aocompanyingr7 drawings, which .torni a part of this specification. invention relates to recoil arresters and consists in the combinations and arrangements hereinafter described and specifically pointed out in the claims. j lln the drawings,-Figure l, is a vertical elevation of my recoil arrester. Fig. 2, is a sectional view on the lines 2 2, Fig. 1. Fig. 3, is a plan view of enlarged end 0i' arm A, showing spring pockets. Fig. 4, is a. cross section of one oi' these pockets "with" spring attached to the washer. Similar letters refer to similar parts. This arrester is formed of two angular arms; A represents one arm thereof; B represents the other arm; these arms may be connected, one to the axlel ci a spring supported vehicle, and the other to the trame. nach of these arms at their junction is enlarged, and one of them, B, :formed into a cup by an annular elevation Z2, thereon, as shown in Fig. 2; the two arms are pivotally united. by a hollow bolt oit peculiar construction, which is shown in Fig'. il, at C. The enlargement of the arm A, has Jtermed therein a curved groove o; at one portion thereof, and continued by s. curved recess around its periphery at al. This annular groove and recess combined is adapted to receive the annular lip b, of the cup formed on the arm B, and'being concentric with the axis oft the bolt C, allows the edge of the lip to turn in the groove and recess. Between these two enlargements there is interposed, first, a leather or fiber Washer D, and second, a metal disk or washer E. l-n the series of pockets F, l?, formed on the inner facel of the enlargement of'arm A. are interposed springs S, S, substantially tangential to the circle made b v the pockets. These springs are as shown in Fig. 4, and are attached at' 'their crowns to the disk-like enlargement of the arm A. By this arrangement the triction disk E, is prevented from turning eX- cept with the arm A., After the assembling oi' the vparts the springs push or crowd the washer E, against the Fiber washer D, with any assignable or adjustable pressure, de pendingr upon the tension of the spring, the same beine,f adjusted as hereinafter stated. The bolt C is threaded in the cup formed in the arm B, as shown in Fig. 2, and if the bolt be rigidly held it is obvious that a turning .movement of the arm B, thereon wculf draw the arm B in or out upon the bolt in proportion to' the amount ci the turning and to the pitch of the screw threads.

The arm is locked to the bolt by a series of pins and pin-holes, the pin-holes being' partially formed in both the enlargement of the arm A and the. bolt, and being;` spaced lather closely together enables the bolt to bc adjusted by withdrawing the pins and turning)y the bolt a. distance suilicient to adjust it one pin-hole or more, and then locking it by replacing them. Obviously, therefore, the arm it. in its movement would turn the bolt C and the movement of the arm B being c'ontradistnnt from that of arm A, the arm B must turn upon the threads H and thus tend to compress the liber washer E or to release it by the reverse movement upon the screw threadsp in order to make a neat appearance and' prevent the pins from dropping out, a screw y cap L is attached to a hub or project-ion M,

bv being screwed thereon tight-ly thus lio-lding the pins in proper relation and covering the opening in the bolt C, also giving the whole a iini'shed appearance. Another screvT cap N, is attached to an `enlargement ot 'the arm B and also closes the opposite end of the hollow bolt C and gives the whole structure a finished appearance; about these there is nothing specially novel, the latter one having no other oihce than that of merely closing.;` up the opening', finishing the appearance.

Having thus described my invention what I desire to claim is: l lfn a recoil arrester, the combination of tai/o pivotally connected arms, oneV of said arms being adapted to be connected to a spring-supported frame of a vehicle andthe other to the axle thereof, friction members between the meeting 'faces of said-pivotnliy connected arms, al plurality oflat springs arranged in pockets of the tace of one the arms, the said pockets encircling' the t'ace and the springs adapted to press the triction members into trictional relation with each other and the face of the other arm, and means :for causing the said springs to exert a di'erent pressure on said friction members when said arms are moved relatively, substantially as described.

2.. In a recoil arrester, the combination of two arms, one arm being provided with a central threaded aperture and the other arm being provided with a cylindrical aperture having'halfoylindrical recesses cut into Lhe said arm, one of the-'arms being adapted to be connected to a spring 'supported frame of a vehicle and the other to the axle thereof, va' bolt having at one. end a threaded portion adapted to engage in the said threaded aperture and having at the other end a plurality reeaeeo of half cylindrical recesses in its periphery, any one of said recesses being adapted to De turned to register with any one ot several of the recesses in the arm, pins adapted to be inserted in the cylindrical hole formed by. two of said recesses registering and resilient means for alierding 'frictional Contact between the said arms, substantially as de scribed.

In tesiimony whereof, I sign this specilication in the presence of two witnesses.

WILLIAM J. KING.

Witnesses R. A. PARKER, N. V. BELLES. 

